diff --git a/docs/book/src/topics/reference/reference.md b/docs/book/src/topics/reference/reference.md
index cf5aa07416..f406c2dbe3 100644
--- a/docs/book/src/topics/reference/reference.md
+++ b/docs/book/src/topics/reference/reference.md
@@ -1 +1,17 @@
 # Reference
+
+## Table of feature gates and their corresponding environment variables
+
+| Feature Gate | Environment Variable | Default |
+| ------------ | -------------------- | ------- |
+| EKS                           | CAPA_EKS                          | true  |
+| EKSEnableIAM                  | CAPA_EKS_IAM	                    | false |
+| EKSAllowAddRoles              | CAPA_EKS_ADD_ROLES                | flase |
+| EKSFargate                    | EXP_EKS_FARGATE                   | flase |
+| MachinePool                   | EXP_MACHINE_POOL                  | false |
+| EventBridgeInstanceState      | EVENT_BRIDGE_INSTANCE_STATE       | flase |
+| AutoControllerIdentityCreator | AUTO_CONTROLLER_IDENTITY_CREATOR  | true  |
+| BootstrapFormatIgnition       | EXP_BOOTSTRAP_FORMAT_IGNITION     | false |
+| ExternalResourceGC            | EXP_EXTERNAL_RESOURCE_GC          | false |
+| AlternativeGCStrategy         | EXP_ALTERNATIVE_GC_STRATEGY       | false |
+| TagUnmanagedNetworkResources  | TAG_UNMANAGED_NETWORK_RESOURCES   | true  |
\ No newline at end of file